Transmitting information via a vehicle's display system

Abstract

Methods for transmitting information via a vehicle display system, comprising: - Determining vehicle information (22) of the vehicle (20), - Generating optical code information (23) based on the vehicle information (22), and - Displaying the optical code information (23) on a display device (41) of the vehicle (20), wherein the display device is a display unit of a navigation system or a display device of an instrument cluster of the vehicle, characterized in that the vehicle information (22) includes route information, which comprises information about a route that the vehicle has driven or will drive, and vehicle diagnostic information, which comprises operating and diagnostic data of the vehicle (20).

Description

[0001] The present invention relates to a method for transmitting information via a display system of a vehicle and to a method for receiving vehicle information using a mobile terminal, for example, a mobile phone. The present invention further relates to a display system for a vehicle configured to implement the method for transmitting information. The method particularly relates to transmitting information as optical code information, for example, using a QR code.

[0002] For the transmission of data between a vehicle, for example a passenger car or truck, and a mobile device, for example a mobile phone or a mobile music player, radio or wired connections are usually used. Radio or wired connections are usually bidirectional, as inFig. 1 is shown schematically. Data 12 can be exchanged between a vehicle 10 and a mobile terminal 11, for example in binary form. When using a radio connection, there is a risk that the transmitted data 12 will be intercepted by an attacker 13. Regardless of whether the data is transmitted via a cable or radio, with a bidirectional connection, data can be transmitted from the mobile terminal to the vehicle 10, which poses the risk that data harmful to the vehicle 10 will be introduced. Furthermore, with a wired connection, electrical interference can penetrate an electrical system of the vehicle 10. With a wired connection or a radio connection, therefore, in addition to complex interfaces, additional security mechanisms are also required.

[0003] In this context, US 2010 / 0 241 857 A1 discloses an authentication method for a mobile terminal. A device in a vehicle generates an authentication key and displays, on a display unit, a two-dimensional code including the generated authentication key and a URL indicating a predetermined web page on a data network. A portable terminal acquires the authentication key and the URL from the two-dimensional code by reading the two-dimensional code via an imaging unit, downloads a communication program for communication with the device in the vehicle from the web page indicated by the URL, and transmits the authentication key to the device in the vehicle by causing the downloaded communication program to operate.According to one embodiment, the device in the vehicle generates a so-called QR code as a two-dimensional code.

[0004] JP 2009-244239 A relates to a location information display and input system. A photographing device photographs a QR code displayed on a display section of a vehicle navigation device at a destination with a photographing section, decodes it with a QR code decoding section, and obtains location information such as the longitude and latitude of the destination and name information, such as the name of the destination and a building name.

[0005] US 2012 / 0 142 322 A1 relates to providing location information using a matrix code. According to one embodiment, a mobile device comprises an optical reading device, such as a camera. The optical reading device can be configured to capture a machine-readable code, such as a matrix code, which has been made available to a user of the mobile device. The matrix code can relate to a QR code. The QR codes can be presented to the user of the mobile device, for example, in connection with a display device of a vehicle navigation system. According to one embodiment, the information encoded in the QR code can comprise address information.

[0006] WO 2011 / 113 874 A2 relates to a concept for communicating between different units using different data portions for different channels. A first unit for communicating with a second unit and a third unit comprises a data divider for dividing a data unit into a first data portion and a second data portion. The data portions are processed with an output interface to transmit a first message to the third unit and a second message to the second unit. In the third unit, the data portion received directly from the first unit and the other data portion received via the second unit are combined. In one embodiment, the second message is displayed as a QR code or any other two-dimensional code on a display.The second unit has a digital camera and a QR code reader for reading the two-dimensional code to extract the information from the second message.

[0007] US Pat. No. 6,765,495 B1 discloses a cross-vehicle communication system in which information is transmitted between vehicles via data sources, data sensors, and vehicle sensors on each vehicle, which are connected to a central processing unit on each vehicle. The central processing unit receives information from other vehicles via the data sensors and calculates information weights for this data. The information weighting can be based on temporal or spatial displacement or other factors. The central processing unit then combines this weighted data with the data provided by the vehicle sensors to determine the vehicle and situation status. The central processing unit then transmits control information to the vehicle or the vehicle driver.The central processing unit also creates messages that are transmitted to other vehicles via the data sources contained in the vehicle.

[0008] From US 2005 / 0 240 344 A1, a route guidance method is known which provides route guidance from a current position to a destination using a navigation device capable of displaying a route from the current position to the destination in combination with a portable terminal carried by a user. The navigation device generates a two-dimensional code based on information associated with the destination and a location where the user exits their car en route to the destination, and displays the code thus generated. The portable terminal acquires the information associated with the location where the user exits their car and the destination by reading the two-dimensional code displayed by the navigation device.

[0009] US 2008 / 0 077 324 A1 discloses a method in which, based on a transmission request from a portable terminal, a two-dimensional code is generated through an input operation or communication. The code contains information about a scaling rate of map information for guidance displayed on the on-board terminal and a current position of a vehicle. The two-dimensional code is displayed on a terminal display unit together with an area of ​​the map information corresponding to an area to be displayed on the portable terminal.When the portable terminal captures the two-dimensional code with an image acquisition unit, the portable terminal detects the scale rate and current position with a code analyzer, receives a range of map information corresponding to the scale rate and including at least the current position from the server unit, and displays the information on the display unit of the portable terminal. The map information can be continuously displayed on a separate terminal in a similar manner without giving the user a sense of strangeness, thus providing the user with a good orientation.

[0010] US 2012 / 0 128 267 A1 discloses an electronic device that can derive device-specific information, dynamically generate a matrix code containing the information as well as user support information, and transmit the dynamically generated code to a display. When a user scans the matrix code with a reader, the reader can decode the specific information and the user support information (or use a backend server for decoding) and initiate a user support request. In this way, user support for electronic devices can be facilitated through dynamically generated matrix codes. Support can then be offered to the user in response to the triggered support request.Problems can be automatically resolved for the user, instructions can be provided to the user, one or more notifications can be provided to the user, service calls can be scheduled for the user, and so on.

[0011] US Pat. No. 5,204,536 A discloses an electro-optical surveillance system for monitoring objects, particularly vehicles. The system comprises a plurality of optical signal transmitters carried by each monitored object according to predetermined geometric patterns. An optical receiver at a remote location receives the transmitted optical signals and contains a processor that identifies the objects based on the combination of the geometric pattern of the transmitters and the optical signals received from them. The transmitters can emit differently coded signals or signals with different wavelengths to assist in identifying the respective object or to transmit other data.

[0012] The object of the present invention is to improve and make more effective the use of a vehicle from the perspective of a vehicle user or vehicle owner.

[0013] This object is achieved according to the present invention by a method for transmitting information via a display system of a vehicle according to claim 1, a method for receiving vehicle information according to claim 7, and a display system according to claim 9. The dependent claims define preferred and advantageous embodiments of the invention.

[0014] According to the present invention, a method for transmitting information via a display system of a vehicle is provided. In the method, vehicle information of the vehicle is determined and, on the basis of the determined vehicle information, optical code information is generated. The optical code information is displayed on a display device of the vehicle, such as, for example, on a display device of a navigation system of the vehicle or on a display device of an instrument cluster of the vehicle. To generate the optical code information, for example, a coding method can be used which converts the vehicle information into the optical code information. The optical code information can, in particular, comprise an optical digital representation in which only two different optical representation means are used, for example the colors black and white.By transmitting vehicle information using optical code information, a secure, simple, and cost-effective channel for data transmission can be provided. The vehicle information includes route information, which contains information about a route the vehicle has driven or will drive. Using the route information, a vehicle user can document and analyze their driving style and driving history. Using optical code information, no additional data storage devices are required. Alternatively or additionally, the vehicle information includes infotainment information. The infotainment information relates to information from an information system or an entertainment system in the vehicle.The information system can, for example, comprise a navigation system which, for example, uses the optical code information to output location information or route information of the vehicle. The entertainment system can, for example, comprise a radio system or an audio or video playback system. Information relating to a current playback of the entertainment system can, for example, be displayed as optical code information. Alternatively or additionally, the vehicle information comprises vehicle diagnostic information which comprises operating and / or diagnostic data of the vehicle. The vehicle diagnostic information can, in particular, comprise diagnostic data of a drive motor of the vehicle, a chassis of the vehicle, or another device of the vehicle, such as a heating and air conditioning system of the vehicle.The vehicle diagnostic information can, for example, be transmitted to a service center in the event of a defect or malfunction in order to obtain troubleshooting assistance. Alternatively or additionally, the vehicle information includes vehicle-specific information, which includes information assigned to the vehicle, predefined, or configurable. This vehicle-specific information can be used, for example, to identify the vehicle, for example, to pay a parking or toll fee.

[0015] In other words, the method described above can be used to output vehicle information in a vehicle using an optical system, for example using a QR code, in order to further process this vehicle information on commercially available mobile devices. The basic requirement for this is a display unit in the vehicle that can show the optical code information. The optical code information can, for example, be photographed and interpreted using the mobile device and an application provided by the vehicle manufacturer. The application can either further process the vehicle information itself or, in conjunction with an internet application, by establishing a connection to a corresponding server. The advantage here is that communication between the vehicle and the mobile device only runs in one direction, thus ensuring that the vehicle network remains physically secure.To further process the data, for example, using a mobile device, the user launches an application on the mobile device and photographs the optical code information displayed in the vehicle. The vehicle information can then be interpreted and graphically processed by the mobile device and presented on a display device of the mobile device. Manufacturer design elements can be used in this process. The vehicle information thus transferred to the mobile device can be collected, for example, in historical data series for more complex personal analysis and graphical representation on the mobile device.

[0016] According to one embodiment of the present invention, the route information comprises a route profile. The route profile can comprise a traveled route or a future planned route. Thus, route profiles can be transferred to a mobile device, for example, and archived there. Alternatively or additionally, the route information comprises an elevation profile of the route. Furthermore, the route information additionally or alternatively comprises an energy consumption profile and alternatively or additionally an energy recovery profile. From the combination of the energy consumption, energy recovery, and the elevation profile, the driver can, for example, identify a consumption characteristic of the vehicle and adapt their driving style so that the vehicle consumes less energy or can recover more energy.The route information additionally or alternatively includes the length of the route traveled. This information can be used, for example, for statistical evaluations by a driver or a vehicle rental company that owns the vehicle. Alternatively or additionally, the route information includes the number of meters of elevation covered, which can also be used for statistical purposes or to evaluate the vehicle's fuel consumption. Furthermore, the route information additionally or alternatively includes a speed profile and alternatively or additionally an average speed. This information can be used for statistical evaluations and can give the driver advice on a fuel-efficient driving style. Alternatively or additionally, the route information includes total energy consumption, which can be used for statistical purposes, for example, in hybrid vehicles in particular.Alternatively or additionally, the route information includes a driving time, for example, to provide information for an electronic logbook. The route information also alternatively or additionally includes a total amount of recovered energy. This information can assist a driver in adopting an energy-efficient driving style. Alternatively or additionally, the route information includes a transmission setting history, which, for example, in conjunction with the speed and energy consumption history, provides a driver with information about the influence of the transmission setting on fuel consumption. Finally, the route information alternatively or additionally includes a history of the type of energy used.Particularly in the case of hybrid vehicles, which can be operated either with electrical energy or a fossil fuel, the trend in the type of energy used to drive the vehicle can be used for statistical evaluations.

[0017] According to a further embodiment of the present invention, the infotainment information comprises station identification information of a received radio station. A mobile terminal that extracts the station identification information from the displayed optical code information can, for example, retrieve additional information regarding the received radio station from a data server, for example a title of a currently playing piece of music or a name of a currently received program or a future program. Alternatively or additionally, the infotainment information comprises title information of a currently playing piece of music. Furthermore, the infotainment information alternatively or additionally comprises artist information of the currently playing piece of music.Based on the title information and / or the artist information, further information can be retrieved via the mobile device from a corresponding data server, for example a song lyric or other songs by the same artist.

[0018] According to a further embodiment of the present invention, the vehicle diagnostic information comprises data from an error memory. The data from the error memory can, for example, in the event of a vehicle malfunction, be transmitted to a mobile terminal, such as a mobile phone, using the optical code information and forwarded from there to a service technician who can assist a driver of the vehicle or a service technician on site in rectifying the malfunction using the data from the error memory. Alternatively or additionally, the vehicle diagnostic information comprises operating data from a drive motor and, alternatively or additionally, operating data from a chassis of the vehicle. This operating data can be used, for example, when servicing the vehicle or for statistical purposes.Alternatively or additionally, the vehicle diagnostic information includes a fuel tank level and, alternatively or additionally, a battery charge level of a drive battery. This information can be used, for example, for personal evaluation by a driver of the vehicle. Alternatively or additionally, the vehicle diagnostic information includes an oil level of a drive engine of the vehicle and, alternatively or additionally, a tire pressure. This information can be used, for example, to issue warnings to a driver of the vehicle if the oil level or the tire pressure is too low. Alternatively or additionally, the vehicle diagnostic information includes a mileage of the vehicle, which can be used, for example, for service purposes or statistical purposes for more complex personal evaluation by the driver.

[0019] According to a further embodiment, the vehicle-specific information comprises a chassis number of the vehicle and, alternatively or additionally, a registration number of the vehicle. The registration number can, for example, be an official license plate number of the vehicle. Furthermore, the vehicle-specific information alternatively or additionally comprises type information of the vehicle, which, for example, additionally comprises information regarding a manufacturer of the vehicle, a color of the vehicle, and the like. The information described above can be used, for example, to identify the vehicle in order to reserve a parking space for the vehicle via a corresponding data server or to obtain approval for use of a toll road.The vehicle-specific information may further comprise vehicle user information, for example, the name and address of a current user of the vehicle. Alternatively or additionally, the vehicle-specific information may comprise vehicle owner information. This information may be used, for example, in conjunction with maintaining an electronic logbook containing the route information. Alternatively or additionally, the vehicle-specific information may comprise payment transaction information. The payment transaction information may, for example, comprise bank details or a credit card number. For example, in order to reserve a parking space or to use a toll road, as described above, the payment transaction information may be used to automatically make a corresponding payment amount.

[0020] In yet another embodiment of the present invention, the code information comprises two-dimensional optical code information. Two-dimensional optical code information can comprise a large amount of information in the range of several kilobytes, so that even more complex information, such as the aforementioned route profiles or speed profiles, can be transmitted optically. Furthermore, two-dimensional optical code information, in particular digital two-dimensional optical code information, can be easily displayed on common display devices, such as a display device of a navigation system or an instrument cluster of the vehicle. Furthermore, two-dimensional optical code information can be easily captured by mobile devices, for example by photographing the code information.The mobile devices can include, for example, mobile phones or diagnostic devices with corresponding cameras. In general, the mobile devices can include mobile, portable devices that can be operated independently of the vehicle. The optical code information can be, for example, a so-called QR code, a DataMatrix code, or an Aztec code. Standards exist for these codes, which are already supported by many mobile devices, especially mobile phones. Thus, the use of the aforementioned codes can ensure cost-effective implementation.

[0021] According to the present invention, a method for receiving vehicle information is further provided. In the method, optical code information, which is displayed on a display device of the vehicle using the method described above, is detected, and the detected code information is decoded. The decoded code information is then further processed. The method can be carried out, for example, by a mobile, portable device that can be operated independently of the vehicle, such as a mobile phone or a workshop diagnostic device. This allows vehicle information to be transmitted to the mobile terminal without the risk of safety-critical repercussions on the vehicle.

[0022] According to one embodiment, processing the decoded code information comprises collecting the decoded code information in a memory. By collecting the decoded code information, which includes the vehicle information, historical data series of the information transmitted by the vehicle can be created for more complex personal evaluations by a user of the vehicle. Additionally or alternatively, processing the decoded code information comprises graphically displaying the decoded code information on a display device of the mobile device. The display device can, for example, comprise a display device on the mobile phone or the workshop diagnostic device. The graphical display can provide a clear presentation of the vehicle information.For example, a vehicle's speed curve in conjunction with a vehicle's fuel consumption curve can be displayed in a diagram as corresponding curves.

[0023] Alternatively or additionally, processing the decoded code information comprises transmitting the code information to a data server. The data server can, for example, be a server of a workshop, a server of a radio station, a server of a car rental company, or a server of a toll or parking system. Depending on the transmitted vehicle information, for example, a fault in the vehicle can be analyzed in the workshop server, or additional information about a piece of music played by the vehicle's infotainment system can be retrieved from the radio station server. A server of a car rental company can, for example, store information about routes traveled and assign it to a vehicle renter. Payment information and vehicle identification information can be used by a server of a toll or parking system to pay a toll or parking fee.Processing the decoded code information additionally or alternatively includes receiving and outputting feedback from the server based on the transmission of the decoded code information to the server. Information from the server, such as a possible cause of an error from a workshop server or confirmation from a toll system server that the vehicle may use a toll route, can thus be output to a user of the vehicle. Finally, processing the decoded code information additionally or alternatively includes transmitting the decoded code information to a home computer. This allows a user of the vehicle to use the vehicle information for personal analysis on their home computer.

[0024] According to the present invention, a display system for a vehicle is further provided. The display system comprises a display device for displaying graphic information and a processing unit coupled to the display device. The processing unit is configured to determine vehicle information of the vehicle and generate optical code information based on the vehicle information. Furthermore, the processing unit is configured to display the optical code information on the display device.The vehicle information comprises route information, which comprises information about a route, additionally or alternatively infotainment information, which comprises information from an information or entertainment system of the vehicle, additionally or alternatively vehicle diagnostic information, which comprises operating and diagnostic data of the vehicle assigned to the vehicle, and additionally or alternatively vehicle-specific information, which comprises predefined or adjustable information. The display system is thus suitable for implementing the method described above or one of its embodiments and therefore also includes the advantages described above.

[0025] The present invention further provides a vehicle comprising the display system described above. The display system can, for example, be part of a vehicle's navigation system, a vehicle's infotainment system, or an on-board computer.

[0026] According to the present invention, a computer program product is further provided that can be loaded directly into the memory of a programmable device. The programmable device can comprise, for example, a mobile phone or a workshop diagnostic device. The computer program product comprises program means for executing all steps of the previously described method for receiving vehicle information when the computer program product is executed in the programmable device. The computer program product may require program means, e.g., libraries or auxiliary functions, to implement the corresponding embodiments of the method.In other words, the claim directed to the computer program product is intended to protect, in particular, a computer program or software, for example, a so-called app, with which one of the above-described embodiments of the method according to the invention for receiving vehicle information can be executed or which executes this embodiment. The software can be source code, e.g., C++, which still needs to be compiled or translated and linked, or which only needs to be interpreted, or it can be executable software code, which only needs to be loaded into the corresponding programmable device for execution.

[0027] The present invention will be described in detail below with reference to the drawings. Fig. 1 shows a connection between a vehicle and a mobile terminal according to the prior art. Fig. 2 shows a connection between a vehicle and a mobile terminal according to an embodiment of the present invention. Fig. 3 shows method steps of methods according to an embodiment of the present invention. Fig. 4 shows a vehicle according to an embodiment of the present invention. Fig. 5 shows display devices for a vehicle according to an embodiment of the present invention. Fig. 6 schematically shows a method for receiving vehicle information according to an embodiment of the present invention. Fig. 7 shows processing of decoded code information according to an embodiment of the present invention.

[0028] Fig. Figure 2 schematically shows an optical unidirectional communication between a vehicle 20 and a mobile terminal 21. The mobile terminal 21 is, for example, a mobile phone, such as a so-called smartphone, or a workshop diagnostic device. The operation of the unidirectional communication is explained below with reference to Fig. 3 will be described in detail. In step 31, vehicle information is determined in the vehicle 20. In step 32, optical code information is generated based on the vehicle information. The optical code information is, for example, a QR code 23. The QR code 23 is generated using an encoding method based on digital information 22 representing the vehicle information. The QR code generated in step 32 is displayed on a display unit of the vehicle 20 in step 33. The mobile device 21 has a capture device, for example, a digital camera. Using the capture device, the mobile device 21 captures the QR code 23 in step 34. In step 35, the mobile device 21 decodes the thus captured QR code and recovers the digital information 22 from the QR code.The vehicle information represented by the digital information 22 is processed in the mobile device 21 in step 36.

[0029] Fig. 4 shows a possible arrangement of the mobile device 21 in the vehicle 20 during the scanning of the QR code. The vehicle 20 has a display device 41 and a processing unit 42. The processing unit 42 is coupled to the display device 41 and determines the vehicle information to be output. Using a coding method, the processing unit 42 generates the QR code 23 and displays the QR code on the display device 41. The mobile terminal 21 is positioned by a driver of the vehicle in the vicinity of the display device 41 such that the scanning device of the mobile device 21 can record the QR code 23 displayed on the display device 41. The display device 41 can be provided, for example, in a dashboard of the vehicle or in an instrument cluster of the vehicle. Fig. 5 shows a corresponding arrangement of a display device 41A in a dashboard, for example in the area of ​​the center console, and a display device 41B in an instrument cluster between round instruments 51, 52 of the vehicle 20.

[0030] In Fig. 6 shows the capture of the QR code and further processing of the vehicle information. Prerequisites are the display device 41 in the vehicle 20 and the mobile terminal 21 with a suitable application for capturing and processing the QR code output by the vehicle 20. In a camera mode of the mobile device 21, the captured QR code is shown on a display of the mobile terminal 21, as shown in the screen output 61 of the Fig. 6. By actuating an operating element of the mobile terminal 21, a user of the mobile terminal 21 initiates the capture and processing of the QR code. The QR code is captured by the capture device and decoded by the mobile device 21 using a decoding algorithm. The decoded vehicle information can be output, for example, directly or in a graphical format as output 62 on the mobile terminal 21. In this case, several vehicle data items transmitted by the vehicle, for example, historical data series, can be displayed together, as shown schematically, for example, in output 63.

[0031] Fig.Figure 7 shows additional processing of the vehicle information using a data server 71, with which the mobile device 21 can be connected, for example, via a radio connection. The server 71 can be used to collect data from the mobile device or to further process the data.

[0032] The use of the transmission of vehicle information using the QR code can, for example, be used to transmit position data and route data. Furthermore, information from a logbook or a journey history can be transmitted. With the help of the server 71, for example, a link to an online travel guide can be created. Furthermore, vehicle-specific information such as a transmission setting such as ECO, Sport, Offroad, Travel or Leisure as well as data from a hybrid electric vehicle or a battery-powered electric vehicle can be transmitted to the mobile device and visualized there. Furthermore, the use of communication via QR code can be used to create a link to radio stations for track lists, lyrics and background information. In the case of vehicles from a car rental or car sharing company, vehicle tracking information or activations can be transmitted.Vehicle diagnostic information can also be transmitted via the QR code, enabling vehicle diagnostics or remote vehicle diagnostics to be performed in or outside of a workshop. It is also possible to operate online payment systems using vehicle-specific information transmitted via the QR code. For example, the QR code can contain a vehicle identification number and a parking time, allowing this information to be used to pay a parking fee. Tolls can also be paid for bridges, tunnels, or highways.

[0033] By using the QR code to transmit vehicle information to a mobile device, cost-neutral communication can be realized between a display system installed in the vehicle and the mobile device. This eliminates the need for data coupling and data transmission devices, such as radio or wired connections. Furthermore, a variety of different mobile devices can record vehicle information, provided the mobile devices have an appropriate recording device, such as a camera. The unidirectional optical transmission ensures a high level of security against eavesdropping by an attacker. Since the unidirectional connection does not include a return channel, tampering with the vehicle via this connection channel can be effectively prevented.

Claims

[1] A method for transmitting information via a display system of a vehicle, comprising: - determining vehicle information (22) of the vehicle (20), - generating optical code information (23) based on the vehicle information (22), and - displaying the optical code information (23) on a display device (41) of the vehicle (20), wherein the display device is a display device of a navigation system or a display device of a combination instrument of the vehicle, characterized by that the vehicle information (22) comprises route information, which includes information about a route that the vehicle has driven or will drive, and vehicle diagnostic information, which includes operating and diagnostic data of the vehicle (20). [2] Method according to claim 1, characterized bythat the route information includes at least one piece of information from a group consisting of: - a route, - an elevation profile of the route, - a route length, - a number of meters of altitude traveled, - a speed curve, - an average speed, - an energy consumption history, - a total energy consumption, - an average energy consumption, - a travel time, - an energy recovery process, - a total recovered energy, - a course of a gear setting, and - a trend of a type of energy used. [3] Method according to claim 1 or 2, characterized bythat the vehicle information comprises infotainment information which comprises information of an information and / or entertainment system of the vehicle (20) and the infotainment information comprises at least one information from a group which consists of: - station identification information of a received radio station, - title information of an output piece of music, and - artist information of an output piece of music. [4] Method according to one of the preceding claims, characterized by that the vehicle diagnostic information includes at least one piece of information from a group consisting of: - Data from an error memory, - Operating data of a drive motor, - Operating data of a chassis, - a tank level, - a battery charge level of a traction battery, - an engine oil level, - a tire pressure, and - a mileage reading. [5] Method according to one of the preceding claims, characterized by that the vehicle information comprises vehicle-specific information which comprises predetermined or adjustable information assigned to the vehicle (20) and the vehicle-specific information comprises at least one piece of information from a group consisting of: - a chassis number, - a registration number, - vehicle type information, - vehicle user information, - vehicle owner information, and - payment transaction information. [6] Method according to one of the preceding claims, characterized by that the optical code information (23) comprises two-dimensional optical code information from a group consisting of: - a QR code, - a DataMatrix code and - an Aztec code. [7] A method for receiving vehicle information, comprising: - detecting an optical code information (23) displayed on a display device (41) of a vehicle (20) using a method according to one of claims 1-6, - decoding the detected code information (23), and - Processing the decoded code information (23). [8] Method according to claim 7, characterized by that the processing of the decoded code information (23) comprises at least one method step from a group consisting of: - Collecting the decoded code information in a memory, - graphically displaying the decoded code information (23) on a display device, - transmitting the decoded code information to a server (71), in particular to a server of a workshop, a radio station, a car rental company or a toll or parking system, - receiving and outputting a feedback from the server (71) based on the transmission of the decoded code information (23) to the server (71), and - Transferring the decoded code information (23) to a home computer. [9] A display system for a vehicle, comprising: - a display device (41) for displaying graphic information, and - a processing unit (42) which is coupled to the display device (41) and is designed to determine vehicle information (22) of the vehicle (20), to generate optical code information (23) on the basis of the vehicle information (22), and to display the optical code information (23) on the display device (41), wherein the display device is a display device of a navigation system or a display device of a combination instrument of the vehicle, characterized bythat the vehicle information (22) comprises route information, which comprises information about a route that the vehicle has driven or will drive, and vehicle diagnostic information, which comprises operating and diagnostic data of the vehicle (20). [10] Display system according to claim 9, characterized by that the display system is designed to carry out the method according to one of claims 1-5.

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